"Glance" works well for that kind of thing.

http://www.glance.net/

Its pretty reasonable and works well.

I think there *IS* a shared Desktop thing available for Moodle... Moodle is a DIRECT open source competitor for TEH EVUL Blackboard.

It might not be "moodle" core but an add on...

DimDim might be one and YugMa might be another and WizIQ might yet be another.

I'm not sure the cost, but its probably going to cost you money in any case.

In any case did you look here:

http://moodle.org/mo.../view.php?id=6009



There are PLENTY of Whiteboard and Audio Video integration modules as well. I only got to the *C* area before I had to go back to work.